CVE-2025-8101
Linkify Allows Prototype Pollution & HTML Attribute Injection (XSS)
EPSS 0.67%
Description
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') vulnerability in Linkify (linkifyjs) allows XSS Targeting HTML Attributes and Manipulating User-Controlled Variables.This issue affects Linkify: from 4.3.1 before 4.3.2.
How to fix CVE-2025-8101
To remediate CVE-2025-8101, upgrade the affected package to a fixed version below.
- npm/linkifyjs—upgrade to 4.3.2 or later
Is CVE-2025-8101 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.3.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N |